Could be that the people who normally would have gotten the flu got covid instead. Can one have flu and covid at the same time?
My uncle had a both. He was hospitalized for pneumonia due to the flu. His covid symptoms popped up and were mild. While he was in quarantine he got the flu and he that is when he got pneumonia twice. Then doctor sucked and honestly almost killed him.
I am not a great lover of doctors. Iz have had health problems and unfortunately I have met many doctors. Honestly, I was smarter than more 75% of them. One doctor even outright admitted that it was harder to get an engineering degree (me) than a medical degree.